Table 6
Spectral fits of the simultaneous XRT and BAT data of IGR J17407−2808 during the outburst on 2011 October 15.
| Model a | N H | Γ | E c | E f |
|
χ2/d.o.f. | |
| (1022 cm-2) | (keV) | (keV) | (erg cm-2 s-1) | ||||
|
|
|||||||
| POW |
|
|
– | – | 6.5 ± 1.1 | 124 / 93 | |
| CPL | 0.84c |
|
– |
|
3.9 ± 0.7 | 85.3 / 93 | |
| HCT |
|
|
|
|
3.6 ± 0.7 | 83.7 / 91 | |
|
|
|||||||
| kT | |||||||
| (keV) | |||||||
|
|
|||||||
| BB | 0.84 c |
|
– | – | 3.6 ± 0.6 | 83.4 / 94 | |
| BRE |
|
|
– | – | 6.0 ± 0.9 | 114.9 / 93 | |
Notes.
POW = absorbed power law. CPL = power law with high energy exponential with e-folding energy at Ef (keV). HCT = absorbed power law with a high energy cut-off at Ec and e-folding energy Ef. BB = black body with temperature kT. BRE = thermal bremsstrahlung with plasma temperature kT.
Fixed to the value obtained from the fit to the XRT data (see Table 2).
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